Art of manufacturing combs.



F. WIELA ND. v

AAAAAAAAAAAAAAAAAAAAAAA APPLICATION FILED SEPT. 8, l9i0.

1,092,81 v Patented Apr. 14,1914

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p Inyentor I by mawt hmwwd/ Z 1 My FRIEDRICH WIELAND, OF. EAST RUTHERFORD, NEW JERSEY, ASSIGNOR TO THE ARLINGTON COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

ART OF MANUFACTURING COMIBS.

Specification of Letters Patent.

Patented Apr. 11, 191i.

To all whom it'may concern:

Be it known that I, FRIEDRICH WIELAND, a citizen of the'United States of America, residing at East Rutherford, New Jersey, have invented certain new and useful Improvements in the Art of Manufacturing Combs, of which the following is a specification.

My invention relates to an improvement.

in the art of manufacturing combs and like articles, and relates, more specifically, to a method of manufacturing combsand the like an improved method of comb manufacture which may be practised more quickly and cheaply than any known to the existing art and by which an article of satisfactory quality and appearance may be produced.

Any means suitable to the purpose may be employed in putting the invention into practice, but I have found that a special form of die invented by me is particularly well I adapted to produce the desired result, and in the accompanying drawing I have shown such special die. n

Figure 1 is a plan view of a fragment of a male die member, used in carrying out my invention; Fig. 1 is a vertical sectional View through the dies when in juxtaposition. This view represents a section taken on the plane indicated by the line aa of Fig. 1 looking in the direction of the arrows. Fig. 1 is a vertical sectional 'view through a portion of the die wherein one-half of an intermediate tooth is formed, the other half of the tooth being formed in the corresponding portion of the companion die. This view represents the section taken on the plane ind-icated by the line b-b of Fig. 1, looking in the direction of the arrows. Fig. 1 illustrates a section between the cutting edges which are located between adjacent teeth and is a view on the plane indicated by the lines c-c inFig. 1 and Fig. 1. Fig. 1 is a section taken on a plane indicated by the 1, Fig. 1 and Fig. 1.

In this figure the dies are also arranged'in 1uxtaposition. Fig. 2 is a similar view of a fragment of a female die member; Fig. 3 is a similar view of a piece of stock or material employed in making combs; and Fig. 4 is a view illustrating a comb to which a portion of superfluous stock adheres, the balance of the superfluous. stock having been removed from the comb.

To enable the invention to be clearly understood the following brief description of the dies is desirable :-1 designates the male die member having a dowel pin 2 at each end for engagement with the hole 3 formed at each end of the female die member 4.

Each die member has the longitudinal depression 5 for forming the back of the comb,

the end depressions 6 for forming the end teeth, and intermediate depressions 7 for the format-ion of the intermediate comb teeth. Between adjacent depressions o-r matrices"? and the end depressions 6 I arrange cutting surfaces 8running substantially the length of the teeth, these cutting surfaces being preferably triangular in shape so that when the two die members are superposed the cutting edges will be substantially diamond shaped in cross section, as shown in Figs. 1 and 2 at 8 and as is more clearly illustrated in Figs. 1 and 1.

In the formation of a comb according to my improved method I employ a piece of stock 9, of celluloid or analogous substance,

and preferably place the same in a plastic condition between the die members 1 and 4;. I then by means of a plunger or the like force the two members together thus producing the comb indicated generally'as 10. When the comb is taken from the die it has superfluous stock 9 of material thickness adhering thereto between the teeth and this stock adheres to the comb 9 by an extremely thin, frail, frangible web, owing to the section of the cutting surfaces 8. The superfluous stock is practically in a homogeneous body, so that by a push-against any part thereof will rupture the thin frailwebs between it and the rest of the comb and consequently the entire superfluous stock may be removed, in most instances, from the comb, the latter then having the clean finished appearance indicated at 10, in Fig. 4. The comb is then ready for bufiing and polishing. Heretofore in comb manufacture the product came from thedie with the superfiubetween the teeth in order to make the comb v tions.

- ,.sary to cutaway the superfluous stock between adjacent teeth, and then use the file ready for -the subsequent finishing opera- In other words, heretofore no comb has been made in which the mass of superfluous stock adheres after a pressing operation to the rest of the comb in the comb blank merely by a frail web formation which per mits the mass of superfluous stock to be removed by merely rupturing the webs which practically connect the thick mass of material between the teeth with the teeth on eachside of the particular mass. Applicant is the'first to constructa pair of dies in which :the back and teeth of a comb are shaped and defined by the forcing of the dies together and t9 which comb the rest of the material in the comb blank that is not required for the particular comb or which may be of superfluous stock of substantial thickness extends between the comb teeth but adheres to the teeth only by a thin frail web at the end of the pressing or shaping operation. By the pressing operation a comb blank is produced which has practically finally shapedand well defined teeth and in which the superfluous material that is of substantial thickness adheres to the rest of the comb by the webs, a large part of which connects the thick material located between the teeth and the teeth adjacent to said material. Most of the Webs are located between said teeth and extend along the teeth that are connected by it to the material between the teeth.

' By the employment of my invention the costly and time consuming cuttingcand filing are eliminated, thus producing a better product in less time and at less cost.

Having thus described my invention. what I claim as new and desire to secure by Letters Patent is '1. In the manufacture of combs the method which comprises the subjecting of material while in a plastic condition to the action of opposing dies that are forced to ward each other, thereby shaping and defining the back and the teeth of the comb and scoring out the teeth in a manner to leave the superfluous material in masses of substantial thickness and strength in the in terdental spaces but connected to the teeth and the rest of the comb proper by thin frangible webs, then subsequently rupturing said frangible webs to remove from said comb the superfluous material between the teeth and finally finishing the comb.

2. In the manufacture of combs the subjecting of celluloid to the pressure of dies which shape and define the back and teeth of the comb and which leave between the teeth superfluous stock of substantial thickness that is connected to the teeth on each side thereof by thin webs, subsequently removing the superfluous stock from the rest of the comb by breaking said thin websand finally finishing the comb.

g 3. In the manufacture of combs the step which consists in the subjecting of material while in a plastic condition to pressure between dies having back and tooth forming depressions and scoring edges, thereby shaping and defining the back and teeth of the comb and scoring the material between the teeth in a manner to leave superfluous material in masses of substantial thickness between the teeth butconnected thereto by thin webs.

4. A comb blank having the comb teeth and back of substantially the'final size and shape, said teeth having between them material of substantial thickness and connected to said teeth by thin frangible webs that permit an easy removal of said material from said comb teeth and back.

In testimony whereof I have affixed my signature in presence of two witnesses.

FRIEDRICH WIELAND.

lVitnesses:

. FRANK SPILE, I O. V. MUNN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patentl.

Washington, D. 0. 

